// Package _5_不用加减乘除做加法 main
// @Title _5_不用加减乘除做加法
// @Description
// @Author  == 琳琳也叫王木木 ==  2022-01-16 18:55
// @Create  2022-01-16 18:55
package main

func main() {

}

func add(a int, b int) int {
	for b != 0 {
		a, b = a^b, (a&b)<<1
	}
	return a
}
